<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <router-link to="/user/1">用户1</router-link>
    <router-link to="/user/2">用户2</router-link>
    <router-link to="/user/3">用户3</router-link>

    <router-view></router-view>

  </div>
  <script src="lib/vue.js"></script>
  <script src="lib/vue-router.js"></script>
  <script>
    // 设置组件 
    var User = {
      template: `
        <div>
          这是用户 {{ $route.params.id }} 的功能
          <input type="text">
        </div>`,
      // 由于组件没有重新创建，所以生命周期钩子只能执行一次
      /* created () {
        console.log('创建了组件的实例');
      } */
      watch: {
        $route (route) {
          // console.log(route);
          console.log(route.params.id)
        }
      }
    };

    // 设置路由规则
    var routes = [
      {
        path: '/user/:id', component: User
      }
    ];

    var router = new VueRouter({ routes });
    var vm = new Vue({
      el: '#app',
      router
    });
  </script>
</body>
</html>